Interaction buckling of composite steel-concrete members

![CDATA[Local and interaction buckling of plated structures in composite steel-concrete construction can render members or structures susceptible to a reduced stiffness and ultimate capacity. The juxtaposition of steel and concrete in these structural forms does however provide an increased resistance of the steel component to local and interaction buckling, and it is this phenomenon which is detailed in this paper. This paper summarises elastic, inelastic and post-local buckling studies of steel plates in direct contact with concrete. Coupled with these studies is the assessment of the global behaviour of beams and columns when interaction or coupled instability may occur. For column members the coupled instabilities of most interest, include the coupling of flexural buckling with local instability. This paper concludes with some recommendations on design approaches and also suggests how this form of instability may be included in routine design of structures for the future.]]